Preference的用法

来源：互联网发布：139邮箱端口编辑：程序博客网时间：2024/05/17 22:29

第一个activity只有两个按钮，一个是跳转到设置界面的按钮，一个是点击显示配置界面内容的按钮。

设置界面里写了各种Preference的用法：

public class PreferenceDemoActivity extends AppCompatActivity implements View.OnClickListener {    private Button settingBtn,showSettingInfoBtn;    private TextView showInfoTv;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_preference_demo);        settingBtn = (Button)this.findViewById(R.id.setting_btn);        showSettingInfoBtn = (Button)this.findViewById(R.id.show_setting_info_btn);        showInfoTv = (TextView)this.findViewById(R.id.show_info_tv);        settingBtn.setOnClickListener(this);        showSettingInfoBtn.setOnClickListener(this);    }    public void onResume(){        super.onResume();        showSettingInfo();    }    private void showSettingInfo(){        SharedPreferences share = PreferenceManager.getDefaultSharedPreferences(this);        StringBuffer info = new StringBuffer();        String listInfo = share.getString(ConstantUtil.LIST_KEY,"green");        String editTextInfo = share.getString(ConstantUtil.EDIT_TEXT_KEY,"this is editTextPreference");        boolean checkboxInfo = share.getBoolean(ConstantUtil.CHECK_BOX_KEY,true);        boolean swithInfo = share.getBoolean(ConstantUtil.SWITCH_KEY,true);        String ringtoneInfo = share.getString(ConstantUtil.RING_TONE_KEY, "默认铃声");        String alarmInfo = share.getString(ConstantUtil.DATE_PICKER,"日期");        info.append("listInfo:").append(listInfo).append("\n")                .append("editTextInfo:").append(editTextInfo).append("\n")                .append("checkboxInfo:").append(checkboxInfo).append("\n")                .append("switchInfo:").append(swithInfo).append("\n")                .append("ringtoneInfo:").append(ringtoneInfo).append("\n")                .append("dateInfo:").append(alarmInfo).append("\n");        showInfoTv.setText(info.toString());    }    @Override    public void onClick(View v) {        switch (v.getId()){            case R.id.setting_btn:                Intent intent = new Intent(PreferenceDemoActivity.this,SettingActivity.class);                startActivity(intent);                break;            case R.id.show_setting_info_btn:                showSettingInfo();                break;        }    }}
布局文件：
<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent"    android:layout_height="match_parent" android:paddingLeft="@dimen/activity_horizontal_margin"    android:paddingRight="@dimen/activity_horizontal_margin"    android:paddingTop="@dimen/activity_vertical_margin"    android:paddingBottom="@dimen/activity_vertical_margin"    android:orientation="vertical"    tools:context="com.h.mynote.demo.preference.PreferenceDemoActivity">    <Button        android:id="@+id/setting_btn"        android:text="设置"        android:gravity="center"        android:layout_width="fill_parent"        android:layout_height="wrap_content" />    <Button        android:id="@+id/show_setting_info_btn"        android:text="显示设置信息"        android:gravity="center"        android:layout_width="fill_parent"        android:layout_height="wrap_content" />    <TextView        android:id="@+id/show_info_tv"        android:textSize="20sp"        android:layout_width="fill_parent"        android:layout_height="wrap_content" /></LinearLayout>
设置界面：
public class SettingActivity extends PreferenceActivity implements SharedPreferences.OnSharedPreferenceChangeListener,Preference.OnPreferenceClickListener {    private ListPreference mListPreference;    private EditTextPreference mEditTextPreference;    private CheckBoxPreference mCheckBoxPreference;    private SwitchPreference mSwitchPreference;    private Preference mPreference;    private RingtonePreference mRingTonePreference;    private AlarmPreference alarmPreference;    int year,month,day;    public void onCreate(Bundle savedInstanceState){        super.onCreate(savedInstanceState);        this.addPreferencesFromResource(R.xml.remind_detail);        initPreference();    }    private void initPreference(){        mListPreference = (ListPreference)this.findPreference(ConstantUtil.LIST_KEY);        mEditTextPreference = (EditTextPreference)this.findPreference(ConstantUtil.EDIT_TEXT_KEY);        mCheckBoxPreference = (CheckBoxPreference)this.findPreference(ConstantUtil.CHECK_BOX_KEY);        mSwitchPreference = (SwitchPreference)this.findPreference(ConstantUtil.SWITCH_KEY);        mPreference = (Preference)this.findPreference(ConstantUtil.PREFERENCE_KEY);        mRingTonePreference = (RingtonePreference)this.findPreference(ConstantUtil.RING_TONE_KEY);        mPreference.setOnPreferenceClickListener(this);        alarmPreference =(AlarmPreference)this.findPreference(ConstantUtil.DATE_PICKER);        alarmPreference.setOnPreferenceClickListener(this);    }    public void onResume(){        super.onResume();        SharedPreferences share = this.getPreferenceScreen().getSharedPreferences();        boolean isCheck = share.contains(ConstantUtil.DATE_PICKER);        Toast.makeText(SettingActivity.this,isCheck+"====date",Toast.LENGTH_SHORT).show();        setDefaultSummary(share);        share.registerOnSharedPreferenceChangeListener(this);    }    public void onPause(){        super.onPause();        this.getPreferenceScreen().getSharedPreferences().unregisterOnSharedPreferenceChangeListener(this);    }    //设置组件小标题    private void setDefaultSummary(SharedPreferences share){        mListPreference.setSummary(share.getString(ConstantUtil.LIST_KEY,"Green"));        mEditTextPreference.setSummary(share.getString(ConstantUtil.EDIT_TEXT_KEY,"this is editTextPreference"));        mRingTonePreference.setSummary(share.getString(ConstantUtil.RING_TONE_KEY,"默认铃声"));        //alarmPreference.setSummary(share.getString(ConstantUtil.DATE_PICKER,"日期"));    }    @Override    public boolean onPreferenceClick(Preference preference) {        if(ConstantUtil.PREFERENCE_KEY.equals(preference.getKey())){            Intent intent = new Intent(SettingActivity.this,AboutActivity.class);            startActivity(intent);        }else if(ConstantUtil.MY_PREFERENCE_KEY.equals(preference.getKey())){            Toast.makeText(this,"点击MyPreference",Toast.LENGTH_SHORT).show();        }else if(ConstantUtil.DATE_PICKER.equals(preference.getKey())){            Calendar myCal = Calendar.getInstance(Locale.CHINA);            year = myCal.get(Calendar.YEAR);            month = myCal.get(Calendar.MONTH);            day = myCal.get(Calendar.DAY_OF_MONTH);            DatePickerDialog dpd = new DatePickerDialog(SettingActivity.this,viewOnDateSetListner,year,month,day);            dpd.show();        }        return false;    }    private DatePickerDialog.OnDateSetListener viewOnDateSetListner = new DatePickerDialog.OnDateSetListener() {        @Override        public void onDateSet(DatePicker view, int year, int monthOfYear, int dayOfMonth) {            year = year;            month = monthOfYear;            day = dayOfMonth;            alarmPreference.setSummary(year+"/"+month+"/"+day);        }    };    @Override    public void onSharedPreferenceChanged(SharedPreferences sharedPreferences, String key) {        if(ConstantUtil.LIST_KEY.equals(key)){            mListPreference.setSummary(mListPreference.getEntry());        }else if(ConstantUtil.EDIT_TEXT_KEY.equals(key)){            mEditTextPreference.setSummary(sharedPreferences.getString(key,"this is editText"));        }else if(ConstantUtil.RING_TONE_KEY.equals(key)){            mRingTonePreference.setSummary(sharedPreferences.getString(key,"默认铃声"));        }else if(ConstantUtil.DATE_PICKER.equals(key)){            Toast.makeText(SettingActivity.this,"11111",Toast.LENGTH_SHORT).show();            alarmPreference.setSummary(sharedPreferences.getString(key,"默认日期"));        }    }}
设置界面布局：
<?xml version="1.0" encoding="utf-8"?><PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android">    <PreferenceCategory android:title="第一项">        <ListPreference            android:defaultValue="Green"            android:dialogTitle="请选择您需要的颜色"            android:entries="@array/my_color_array"            android:entryValues="@array/my_color_array"            android:key="list_key"            android:summary="Green"            android:title="颜色设置"/>    </PreferenceCategory>    <PreferenceCategory android:title="第二项">        <EditTextPreference            android:defaultValue="请输入描述"            android:key="edit_text_key"            android:summary="this is editTextPreference"            android:title="文本输入框"/>    </PreferenceCategory>    <PreferenceCategory android:title="第三项">        <CheckBoxPreference            android:key="checkbox_key"            android:defaultValue="true"            android:title="checkbox"/>        <SwitchPreference            android:key="switch_key"            android:defaultValue="true"            android:title="switch"/>        <Preference            android:key="preference_key"            android:title="关于"/>    </PreferenceCategory>    <PreferenceCategory android:title="第四项">        <RingtonePreference            android:key="ring_tone_key"            android:title="Ringtone"            android:summary="默认铃声"            android:ringtoneType="alarm">        </RingtonePreference>    </PreferenceCategory>    <PreferenceCategory android:title="第五项">        <com.h.mynote.demo.remind.AlarmPreference            android:key="date_key"            android:icon="@drawable/icon_zdy_date"            android:defaultValue="日期"            android:title="日期"            android:summary="2016/3/24">        </com.h.mynote.demo.remind.AlarmPreference>    </PreferenceCategory></PreferenceScreen>
定义了各种常量的配置文件：
public class ConstantUtil {    public static final String LIST_KEY = "list_key";    public static final String EDIT_TEXT_KEY = "edit_text_key";    public static final String CHECK_BOX_KEY = "checkbox_key";    public static final String SWITCH_KEY = "switch_key";    public static final String RING_TONE_KEY = "ring_tone_key";    public static final String PREFERENCE_KEY = "preference_key";    public static final String MY_PREFERENCE_KEY = "my_preference_key";    public static final String DATE_PICKER = "date_key";}

0 0